JPS6077013U

JPS6077013U - head support device

Info

Publication number: JPS6077013U
Application number: JP1983168703U
Authority: JP
Inventors: 難波　栄一
Original assignee: 日本電気ホームエレクトロニクス株式会社
Priority date: 1983-10-31
Filing date: 1983-10-31
Publication date: 1985-05-29

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図はバイモルフ構造の圧電素子の組み込まれるドラ
ム装置の断面を示す図、第２図は第１図におけるＡ−Ａ
矢視図であり回転ドラムに可動ヘッドと固定ヘッドとが
取り付けられた状態を示す図、第３図は可動ヘッドと駆
動素子である従来のバイモルフ構造の圧電素子とを示す
図、第４図は可動ヘッドと駆動素子である本考案のバイ
モルフ構造の圧電素子とを示す図である。１；スリップリング、２；回転ドラム、３；フランジ、
４；固定ドラム、５；シャフト、６；ロータリートラン
ス、１０；ビデオヘッドチップ、１１′；電歪アクチュ
エーター■、１１−１；電歪アクチュエーターＩＩ、１
２；ヘッドのリード線引出穴、１３；固定部材、２０；
ヘッドコイル、２１；リード線、２２；第１の電極板、
２３；第２の電極板、２４；圧電素子、２５；第３の電
極板、２６；電極板の電源線■、２７；電極板の電源線
■、２８；導電パターン、２９；引出線、１００；ヘッ
ド支持装置■、１０１；ヘッド支持装置■。FIG. 1 is a cross-sectional view of a drum device in which a piezoelectric element with a bimorph structure is incorporated, and FIG. 2 is an A-A in FIG. 1.
3 is a view showing the movable head and the fixed head attached to the rotating drum; FIG. 3 is a view showing the movable head and a conventional piezoelectric element having a bimorph structure as a driving element; and FIG. FIG. 3 is a diagram showing a movable head and a piezoelectric element having a bimorph structure according to the present invention, which is a driving element. 1; Slip ring, 2; Rotating drum, 3; Flange,
4; Fixed drum, 5; Shaft, 6; Rotary transformer, 10; Video head chip, 11'; Electrostrictive actuator ■, 11-1; Electrostrictive actuator II, 1
2; Head lead wire extraction hole, 13; Fixing member, 20;
Head coil, 21; Lead wire, 22; First electrode plate,
23; second electrode plate; 24; piezoelectric element; 25; third electrode plate; ; Head support device ■, 101; Head support device ■.

Claims

[Scope of utility model registration request]

The first electrode plate and the third electrode plate and the second electrode plate and the third electrode plate
In the head support device, a piezoelectric element is sandwiched and bonded between an electrode plate to constitute an electrostrictive actuator having a bimorph structure, and a video head chip is fixed to one end of the electrostrictive actuator, wherein the first or second electrode A pair of conductive patterns electrically insulated from each of the electrode plates is provided on the side of the plate, and both ends of the coil wound around the video head chip are connected to the pair of conductive patterns near the video chip. A head support device characterized in that the conductive pattern constitutes a part of a lead wire of the coil.